diff options
Diffstat (limited to 'arch/s390/include/asm/debug.h')
| -rw-r--r-- | arch/s390/include/asm/debug.h | 153 |
1 files changed, 151 insertions, 2 deletions
diff --git a/arch/s390/include/asm/debug.h b/arch/s390/include/asm/debug.h index c305d39f5016..310134015541 100644 --- a/arch/s390/include/asm/debug.h +++ b/arch/s390/include/asm/debug.h @@ -107,13 +107,37 @@ void debug_unregister(debug_info_t *id); void debug_set_level(debug_info_t *id, int new_level); void debug_set_critical(void); + void debug_stop_all(void); +/** + * debug_level_enabled() - Returns true if debug events for the specified + * level would be logged. Otherwise returns false. + * + * @id: handle for debug log + * @level: debug level + * + * Return: + * - %true if level is less or equal to the current debug level. + */ static inline bool debug_level_enabled(debug_info_t *id, int level) { return level <= id->level; } +/** + * debug_event() - writes binary debug entry to active debug area + * (if level <= actual debug level) + * + * @id: handle for debug log + * @level: debug level + * @data: pointer to data for debug entry + * @length: length of data in bytes + * + * Return: + * - Address of written debug entry + * - %NULL if error + */ static inline debug_entry_t *debug_event(debug_info_t *id, int level, void *data, int length) { @@ -122,6 +146,18 @@ static inline debug_entry_t *debug_event(debug_info_t *id, int level, return debug_event_common(id, level, data, length); } +/** + * debug_int_event() - writes unsigned integer debug entry to active debug area + * (if level <= actual debug level) + * + * @id: handle for debug log + * @level: debug level + * @tag: integer value for debug entry + * + * Return: + * - Address of written debug entry + * - %NULL if error + */ static inline debug_entry_t *debug_int_event(debug_info_t *id, int level, unsigned int tag) { @@ -132,6 +168,18 @@ static inline debug_entry_t *debug_int_event(debug_info_t *id, int level, return debug_event_common(id, level, &t, sizeof(unsigned int)); } +/** + * debug_long_event() - writes unsigned long debug entry to active debug area + * (if level <= actual debug level) + * + * @id: handle for debug log + * @level: debug level + * @tag: long integer value for debug entry + * + * Return: + * - Address of written debug entry + * - %NULL if error + */ static inline debug_entry_t *debug_long_event(debug_info_t *id, int level, unsigned long tag) { @@ -142,6 +190,18 @@ static inline debug_entry_t *debug_long_event(debug_info_t *id, int level, return debug_event_common(id, level, &t, sizeof(unsigned long)); } +/** + * debug_text_event() - writes string debug entry in ascii format to active + * debug area (if level <= actual debug level) + * + * @id: handle for debug log + * @level: debug level + * @txt: string for debug entry + * + * Return: + * - Address of written debug entry + * - %NULL if error + */ static inline debug_entry_t *debug_text_event(debug_info_t *id, int level, const char *txt) { @@ -152,12 +212,28 @@ static inline debug_entry_t *debug_text_event(debug_info_t *id, int level, /* * IMPORTANT: Use "%s" in sprintf format strings with care! Only pointers are - * stored in the s390dbf. See Documentation/s390/s390dbf.txt for more details! + * stored in the s390dbf. See Documentation/s390/s390dbf.rst for more details! */ extern debug_entry_t * __debug_sprintf_event(debug_info_t *id, int level, char *string, ...) __attribute__ ((format(printf, 3, 4))); +/** + * debug_sprintf_event() - writes debug entry with format string + * and varargs (longs) to active debug area + * (if level $<=$ actual debug level). + * + * @_id: handle for debug log + * @_level: debug level + * @_fmt: format string for debug entry + * @...: varargs used as in sprintf() + * + * Return: + * - Address of written debug entry + * - %NULL if error + * + * floats and long long datatypes cannot be used as varargs. + */ #define debug_sprintf_event(_id, _level, _fmt, ...) \ ({ \ debug_entry_t *__ret; \ @@ -172,6 +248,20 @@ __debug_sprintf_event(debug_info_t *id, int level, char *string, ...) __ret; \ }) +/** + * debug_exception() - writes binary debug entry to active debug area + * (if level <= actual debug level) + * and switches to next debug area + * + * @id: handle for debug log + * @level: debug level + * @data: pointer to data for debug entry + * @length: length of data in bytes + * + * Return: + * - Address of written debug entry + * - %NULL if error + */ static inline debug_entry_t *debug_exception(debug_info_t *id, int level, void *data, int length) { @@ -180,6 +270,19 @@ static inline debug_entry_t *debug_exception(debug_info_t *id, int level, return debug_exception_common(id, level, data, length); } +/** + * debug_int_exception() - writes unsigned int debug entry to active debug area + * (if level <= actual debug level) + * and switches to next debug area + * + * @id: handle for debug log + * @level: debug level + * @tag: integer value for debug entry + * + * Return: + * - Address of written debug entry + * - %NULL if error + */ static inline debug_entry_t *debug_int_exception(debug_info_t *id, int level, unsigned int tag) { @@ -190,6 +293,19 @@ static inline debug_entry_t *debug_int_exception(debug_info_t *id, int level, return debug_exception_common(id, level, &t, sizeof(unsigned int)); } +/** + * debug_long_exception() - writes long debug entry to active debug area + * (if level <= actual debug level) + * and switches to next debug area + * + * @id: handle for debug log + * @level: debug level + * @tag: long integer value for debug entry + * + * Return: + * - Address of written debug entry + * - %NULL if error + */ static inline debug_entry_t *debug_long_exception (debug_info_t *id, int level, unsigned long tag) { @@ -200,6 +316,20 @@ static inline debug_entry_t *debug_long_exception (debug_info_t *id, int level, return debug_exception_common(id, level, &t, sizeof(unsigned long)); } +/** + * debug_text_exception() - writes string debug entry in ascii format to active + * debug area (if level <= actual debug level) + * and switches to next debug area + * area + * + * @id: handle for debug log + * @level: debug level + * @txt: string for debug entry + * + * Return: + * - Address of written debug entry + * - %NULL if error + */ static inline debug_entry_t *debug_text_exception(debug_info_t *id, int level, const char *txt) { @@ -210,12 +340,30 @@ static inline debug_entry_t *debug_text_exception(debug_info_t *id, int level, /* * IMPORTANT: Use "%s" in sprintf format strings with care! Only pointers are - * stored in the s390dbf. See Documentation/s390/s390dbf.txt for more details! + * stored in the s390dbf. See Documentation/s390/s390dbf.rst for more details! */ extern debug_entry_t * __debug_sprintf_exception(debug_info_t *id, int level, char *string, ...) __attribute__ ((format(printf, 3, 4))); + +/** + * debug_sprintf_exception() - writes debug entry with format string and + * varargs (longs) to active debug area + * (if level <= actual debug level) + * and switches to next debug area. + * + * @_id: handle for debug log + * @_level: debug level + * @_fmt: format string for debug entry + * @...: varargs used as in sprintf() + * + * Return: + * - Address of written debug entry + * - %NULL if error + * + * floats and long long datatypes cannot be used as varargs. + */ #define debug_sprintf_exception(_id, _level, _fmt, ...) \ ({ \ debug_entry_t *__ret; \ @@ -231,6 +379,7 @@ __debug_sprintf_exception(debug_info_t *id, int level, char *string, ...) }) int debug_register_view(debug_info_t *id, struct debug_view *view); + int debug_unregister_view(debug_info_t *id, struct debug_view *view); /* |